Robert Carradine, best known in recent years for playing Lizzie’s dad, Sam McGuire, on Lizzie McGuire, died on February 23, 2026, at the age of 71. As fans and his former co-stars mourn Robert’s death, many wondered what caused it since he had no known health issues.
Hilary Duff, who played Robert’s on-screen daughter in Lizzie McGuire, wrote a heartfelt Instagram tribute, noting that his death “hurts” her.
“It’s really hard to face this reality about an old friend,” the “Mature” artist wrote. “There was so much warmth in the McGuire family and I always felt so cared for by my on-screen parents. I’ll be forever grateful for that. I’m deeply sad to learn Bobby was suffering. My heart aches for him , his family, and everyone who loved him.”
It was Robert’s older brother, Keith Carradine, who broke the news that day. In his public statement, Keith reflected on Robert’s struggle with Bipolar Disorder.
Below, learn what happened to Robert and how he died.
According to his brother, Keith, Robert died by suicide.
